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2. [30 points] Four projects are being evaluated, and their cash flows are listed below. If the MARR is 15% per year, use AW method to determine which projects are economically acceptable, and which should be selected. II III IV Capital Investment -100.000 -152,000 -184.000 -200,000 Annual Revenues less Expenses 15.200 31,900 35.900 45,000 Salvage Value 10,000 O 15,000 35.000 Useful life 12 8 7 3. [15 points] One alternative is being considered; First Cost 9.200 Uniform Annual Benefit 1.850 Useful Life B a) Calculate the conventional B/C ratio at a discount rate of 7% per year. b) Determine the minimum first cost necessary to make the project economically justified